Bibcode
DOI
Crivellari, L.; Simonneau, E.
Bibliographical reference
The Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 429, no. 1, p. 331-339
Advertised on:
7
1994
Journal
Citations
14
Refereed citations
5
Description
The implicit intergral method that we have already introduced in a
previous paper, together with its application to the non-Local Thermal
Equilibrium (non-LTE) line formation problem, is considered here for
another paradigm problem, namely, the self-consistent temperature
correction when computing Local Thermal Equilibrium (LTE) stellar
atmosphere models. The specific form of the source function, required by
the algorithm, is obtained through a linear expansion of the Planck
function around a trial temperature distribution. The correct solution
is quickly obtained via an iterative correction procedure. The
nonmatricial structure, which is the distinctive feature of the implicit
intergral method, offers the possibility to take into account a very
large number of frequency, angle, and depth discrete points, without any
penalty in terms of numerical or computational problems.